20071073525 has 12 divisors (see below), whose sum is σ = 24891322404. Its totient is φ = 16054800000.

The previous prime is 20071073521. The next prime is 20071073527. The reversal of 20071073525 is 52537017002.

It can be written as a sum of positive squares in 6 ways, for example, as 405498769 + 19665574756 = 20137^2 + 140234^2 .

It is not a de Polignac number, because 20071073525 - 2² = 20071073521 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 20071073491 and 20071073500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20071073521) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 165305 + ... + 259745.

It is an arithmetic number, because the mean of its divisors is an integer number (2074276867).

Almost surely, 2^20071073525 is an apocalyptic number.

20071073525 is a gapful number since it is divisible by the number (25) formed by its first and last digit.

It is an amenable number.

20071073525 is a deficient number, since it is larger than the sum of its proper divisors (4820248879).

20071073525 is an equidigital number, since it uses as much as digits as its factorization.

20071073525 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102952 (or 102947 counting only the distinct ones).

The product of its (nonzero) digits is 14700, while the sum is 32.

The spelling of 20071073525 in words is "twenty billion, seventy-one million, seventy-three thousand, five hundred twenty-five".